Eyeglasses or spectacles.



No. 764,100. PATENTED JULY. 5, 1904.

G. F. APPLEGATE. EYEGLASSES 0R SPBGTACLES. 1

APPLIOATION FILED 00119, 1903.

N0 MODEL. 2 SHEETS-SHEET 1.

Flam

NQ- 764,100. PATENTED JULY 5, 1904. I G. F. APPLEGAT-E.

EYEGLASSES 0R SPECTAGLES.

APPLICATION FILED 00121: 1902'.-

N0 MODEL. 2' SHEETS-SEEM z.

wu W f UNITED STATES.

Patented July 5, 1904.

PATENT Fries.

EYEGLASSES OR SPECTACLES.

SPECIFICATION forming part of Letters Patent No. 764,100, dated July 5,1904.

Application filed October 19, 1903.

To all lull/mt it 777/(LZ/ concern.-

Be it known that I, GEORGE F. APPLEGATE, of Trenton, in the State of NewJersey, have invented certain new and useful Improvements in Eyeglassesor Spectacles, whereof the following is a specification, reference beinghad to the accompanying drawings.

My invention relates to a clamp of the frameless or rimless classarranged to maintain a lens in proper relation with the nose bridge,guard, or other frame members and a lens of peculiar constructionadapted to cooperate with said lens-clamp. A clamp of the classspecified usually comprises straps to engage the opposite sides of thelens, provided with registered circular openings to receive a screwentered through a corresponding aperture in the lens. It ischaracteristic of prior devices that said screw occupies a certaininvariable position in the lens-clamp, its location being determined bya circular seat or screw-threaded opening to which it is fitted in theclamp, and therefore the aperture in the lens must be accurately drilledat a certain distance from the edge of the lens or else it must beenlarged to bring it into registry with the apertures in the clampstraps before the clamp can be secured to. the lens. It may be notedthat the ordinary inaccuracies of manufacture are such that the latterexpedient is frequently necessary.

It is an object of my invention to provide a lens-clamp which may bereadily attached to a lens regardless of slight variations in thelocation of the aperture in the lens, so as to avoid the aforesaidnecessity for accurately drilling the lens or redrilling it.

To this end my invention comprises a lensclamp which instead of beingprovided with a circular aperture or seat fitted to receive and retainthe screw-threaded member in invariable relation to the clamp isprovided with an elongated slot or notch in which said member may beadjusted and engaged at different distances-from the edge of the lens incorrespondence with the location of the lensaperture.

A further object of my invention is to provide a lens with ascrew-threaded member Serial No. 177.711. (N0 model.)

stationary therein and adapted to cooperate with the peculiar form ofclamp herein contemplated.

My invention comprehcnds the various novel features of construction andarrangement hereinafter more definitely specified.

In the drawings, Figure I is a perspective View of a fragment of a lenswith a convenient embodiment of my invention applied thereto. Fig. II isa perspective view showing the-opposite side of the parts shown in Fig.I. Fig. III is a perspective view of the lens-clamp shown in Figs. I andII. Fig. IV is a perspective view of a modified form of lens-clamp. Fig.V is a perspective view of the bolt and nut shown in Figs. I and II.Fig. VI is a side view of a modified form of clamp. Fig. VII is aperspective view of a fragment of a lens provided with an aperture toengage the clamp. Fig. VIII is a perspective view of a fragment of alens provided with a peripheral notch to engage the clamp. Fig. IX is aperspective view of a fragment of a lens with a modified form of myinvention applied thereto. Fig. X is a perspective view showing theopposite side of the parts shown in Fig. IX. Fig. XI is a face view of alens provided with a stationary bolt. Fig. XII is a sectional view takenon the line XII XII in Fig. XI. Fig. XIII is a sectional view of a lens,showing modified means for securing the bolt in stationary position.Fig. XIV is a sectional view of the clamp shown in Figs. IX and X.

Referring to Figs. I, II, and III, the lensclamp 1 comprises the flangedseat 2 to receive the bridge and nose-guard members, and said seat isconnected by the shank 3 with the plate, which comprises the wings 4,arranged to engage the edge of the lens 5, and the straps 6 and 7, whichembrace the opposite faces of said lens. As indicated in Figs. 1,11, andIII, said straps 6 and 7 are respectively bifurcated by slots or notches8 9, which terminate adjacent to the wing members 4: and extend to thefree ends of the straps. Said slots 8 9 are of such extent as toregister with the aperture 10 in the lens 5 regardless of suchvariations in the distance of said aperture from the edge of the lens asare incident to rapid production of such lenses, and the clamp issecured to the lens by the screw-threaded bolt 13, whose head 14encounters the outer face of the strap 6 and whose nut encounters theouter face of the strap 7. As shown in Fig. V, said bolt 13 is providedwith a shoulder 16, having parallel sides adjacent to the head 14 forengagement with the parallel sides of the notch 8 in the strap 6 toprevent rotation of said bolt 13 when the nut 15 is rotated on thescrew-thread 17 of said bolt.

In the form of my invention shown in Fig. IV the lens-clamp 19 comprisesthe single strap 20, provided with the notch 21, and the shank 22 isconnected with said strap by the rib 23. In this form of my inventionthe shoulder 16 of the bolt 13 is of course engaged in the notch 21 insaid strap 20, and the nut 15 contacts with the face of the lensopposite to that in contact with said strap.

It may be noted that the clamp (shown in Figs. I, II, and III) abovedescribed is preferably made in two piecesthat is to say, the seat 2 andshank 3 are in integral relation and primarily separate from the platecomprising the wings 4 and straps 6 7, said shank being united to saidplate by a soldering operation. On the contrary, the form of clamp shownin Fig. IV may be made integrally by successive stamping operations.

Referring to Fig. VI, the clamp 25 is provided with the strap 26, havingits opposite edges serrated, as indicated at 27, to fit thecorresponding serrations in the bolt 28, so that the latter may beinserted in different positions with respect to the edge of the clampand be prevented from accidental displacement therefrom.

Referring to Figs. IX, X, and XIV, the clamp may be formed of a singlesheetmetal stamping different from the clamp 19 (shown in Fig. IV) inthat its shank 31 is at one side of instead of being centrally disposedwith respect to the thickness of the lens. The flange 32 of said clamp30, which extends parallel with the edge of the lens, is reinforced atits junction with the strap 33 by the ribs 34, which may be convenientlystamped up in integral relation with said strap and flange. As bestshown in Figs. X and XIV, said clamp 30 is provided with a lug 35,fitted to the notch 36 in the lens 37, so as to prevent oscillation ofthe clamp upon the bolt 38, by which it is secured to the lens, the head39 of said bolt being in contact with one side of the lens and the nut40 being in contact with the strap 33. As shown in Fig. XIV, said clamp30, having the offset shank 31, permits the employment of a bolt 42 andnut 43 to secure the nosebridge 44 and guard 45 in proper relation totheir seat 46. The head 47 of said bolt 42 being in contact with theinner-face of said seat 46 an immediately-adjacent portion of said boltis squared or otherwise shaped to engage a correspondingly-shapedaperture in said seat 46 to prevent rotation of the bolt.

The clamps above described being provided with straps having slots ornotches extending to their ends it is unnecessary to employ therewith abolt in detachable relation to the lens. Therefore in Figs. XI, XII, andXIII I have shown lenses provided with bolts in stationary relation tothe lenses which are thus arranged to cooperate with the peculiar clampsabove described. The lens 49 (shown in Figs. XI and XII) is providedwith the aperture 50, in which the bolt 51 is perman'ently secured bythe bushing 52, which may be of cement, and said bolt is provided withnuts 53 upon its opposite endsto engage the opposite faces of theclamp-straps. The lens 55 (shown in Fig. XIII) is provided with the bolt56, which is fixed in the aperture 57 by means of the bushing 58, whichlatter may be of metal or other material capable of being swaged to formshoulders 59 upon the opposite sides of the lens at right angles to theaxis of said bolt 56, so that the straps engaged with said bolt come incontact with the opposed parallel surfaces of said shoulders 59 insteadof in contact with the converging opposite faces of said lens 55, thusinsuring a more uniform distribution of the clampingpressure on thestrap.

Although I have shown in Figs. XI, XII, and XIII lenses provided withstationary screw-threaded members by which the clamps may be attached,it may be noted that the screw-threads may be omitted from said. membersand the clamps secured in the desired position of adjustment byupsetting the projecting ends of said members to form rivetheads.

I do not desire to limit myself to the precise details of constructionand arrangement herein set forth, as it is obvious that variousmodifications may be made therein without departing from the essentialfeatures of my invention.

I claim 3 1. The combination with a lens, of a lensclamp, provided witha screw-threaded member arranged to engage the lens and. clamp, ininvariable relation to the former, and in Variable relation to thelatter, substantially as set forth.

2. The combination with a lens, of a lensclamp, provided with ascrew-bolt arranged to engage the lens and clamp, in invariable relationto the former; and means arranged to engage said bolt at differentdistances from the edge of the lens, substantially as set forth.

3. The combination with a lens, of a lensclamp having a member extendingparallel to the surface of the lens, arranged to register with anaperture in the lens; a screw-threaded member, arranged to engage thelens in invariable relation, and adjustable in said clamp member incorrespondence with variations in the location of said lens-aperturewith respect to the edge of the lens, substantially as set forth.

4. The combination with a lens, of a lensclamp having a strap comprisingmeans to receive a screw-threaded member at different distances from theedge of the lens; a screwthreaded member, in invariable relation withthe lens, fitted in said strap, arranged to connect said strap and lens,and provided with means to prevent its rotation therein, substantiallyas set forth.

5. In a lens-clamp, the combination with a strap comprising an elongatedslot; of a screwbolt adjustable from end to end of said slot, arrangedto connect said strap and lens, providcd with means to preventitsrotation therein; and, a nut fitted to said bolt, substantially as setforth.

6. In a lens-clamp, the combination with a strap having an elongatedslot with parallel edges; of a screw-bolt adjustable from end to end ofsaid slot, arranged to connect said strap and lens, having a shoulderwith parallel sides fitted to said slot to prevent its rotation therein;and, a nut fitted to said bolt, substantially as set forth.

7. In a lens-clamp, the combination with a shank provided at oneextremity with a seat for the nose guard and bridge and at the otherextremity with a strap comprising an elongated slot; of a screw-boltcomprising a shoulder arranged to engage said slot, adjustable from endto end thereof in non-rotatable relation; and, anut fitted to said bolt,substantially as set forth.

8. In a lens-clamp, the combination with opposed respectively bifurcatedstraps extending parallel with the opposite faces of the lens; of ascrew-bolt provided with a shoulder arranged to engage one of saidstraps between its bifurcations, in non-rotatable relation; and, a nuton said bolt, arranged to engage the other strap, substantially as setforth.

9. In a lens-clamp, the combination with a seat for the nose guard andbridge; of a shank extending from said seat; a strap extending parallelwith the lens in eccentric relation to said shank and comprising anelongated slot; and, means arranged to engage the lens through saidslot, in adjustable relation to said clamp, substantially as set forth.

10. In a lens-clamp, the combination with a seat for the nose guard andbridge; of a shank extending from said seat; a plate, on said shank,comprising wings to embrace the edge of the lens and a strap extendingparallel with the face of the lens; said strap comprising an elongatedslot; a screw-bolt adjustable from end to end of said slot, fitted innon-rotatable relation therein, in registry with an aperture in thelens; and, a nut on said bolt, substantially asset forth.

11. In a lens-clamp, the combination with a seat for the nose bridge andguard; of a shank extending from said seat;'a strap extending fromsaidshank, parallel with the surface of the lens, comprising anelongated slot; and, a rib connecting said shank and said strap,substantially as set forth.

12. In a lens-clamp, the combination with a seat for the nose bridge andguard; of a shank; wings extending from said shank arranged to engagethe edge of the lens; a strap extending from said shank parallel withthe surface of the lens, comprising an elongated slot; and, a ribconnecting said shank and said strap, substantially as set forth.

13. In an eyeglass or spectacle, the combination with a lens-clampcomprising a lug fitted to a notch in the edge of the lens; of a screwarranged to engage the lens and clamp in longitudinally-adjustablerelation, substantially as set forth.

14. In an eyeglass or spectacle, the combination with a lens-clampcomprising a strap extending parallel to the surface of the lens,arranged to register with an aperture in the lens; of a screw enteredthrough the lens, ar-

ranged to engage the lens and clamp, and adjustable in said clamp membertoward and away from the edge of the lens, in, correspondence withvariations in the location of said lens-aperture; and, a lug on saidclamp fitted to a notch in the edge of the lens, substantially as setforth.

15. In an eyeglass or spectacle, the combination with a lens; of anattaching member ontered through an aperture in said lens; means in saidlens'securing said .member in stationary position; and, a lens-clamparranged to engage said attaching member in different positions ofadjustment with respect to the edge of the lens, substantially as setforth.

In testimony whereof I have hereunto signed my name, at Philadelphia,Pennsylvania, this 16th day of October, 1903.

GEO. F. APPLEGATE.

WVitnesses:

ARTHUR E. PAIGE, E. L. FULLERTON.

